| 摘要 |
A recreational gymnastic apparatus is made up of a support platform for the user and an elastic rebounding element which is mounted under the platform, forming a support for the unit of the floor. The rebounding element is preferably a resilient ball, and it is mounted within a hemispherical, open bottom housing formed in the platform so as to receive the ball. An arm projects upwardly at an acute angle with respect to the platform and terminates in handlebars at its upper end.
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